Spellchecking converter README files.

converter/adb_usb/README.md

@@ -71,8 +71,8 @@ Notes
 Many ADB keyboards has no discrimination between right modifier and left one,
 you will always see left control even if you press right control key.
 Apple Extended Keyboard and Apple Extended Keyboard II are the examples.
-Though ADB protocol itsef has the ability of distinction between right and left.
-And most ADB keyboard has no NKRO functionality, though ADB protocol itsef has that. 
+Though ADB protocol itself has the ability of distinction between right and left.
+And most ADB keyboard has no NKRO functionality, though ADB protocol itself has that. 
 See protocol/adb.c for more info.
 
 EOF

converter/ascii_usb/README

@@ -6,7 +6,7 @@ Target MCU is ATMega32u4 but other USB capable AVR will also work.
 
 Hardware
 --------
-Connect RX, TX and GND to UART pin of AVR. Note that you may need line drvier/level shfiter like MAX232 to interface high voltage of RS-232C.
+Connect RX, TX and GND to UART pin of AVR. Note that you may need line driver/level shifter like MAX232 to interface high voltage of RS-232C.
 
 
 

converter/m0110_usb/README.md

@@ -2,7 +2,7 @@ M0110/M0110A to USB keyboard converter
 ======================================
 This firmware converts the protocol of Apple Macintosh keyboard **M0110**, **M0110A** and **M0120** into USB. Target of this project is USB AVR controller **ATmega32U4**. Using this converter you can revive these retro keyboards with modern computer.
 
-Pics of **M0110 + M0120** and **M0110A**.
+Pictures of **M0110 + M0120** and **M0110A**.
 
 ![M0110+M0120](http://i.imgur.com/dyvXb2Tm.jpg)
 ![M0110A](http://i.imgur.com/HuHOEoHm.jpg)
@@ -31,7 +31,7 @@ Note that original cable used with Mac is **straight** while phone handset cable
 
 <http://en.wikipedia.org/wiki/Modular_connector#4P4C>
 
-Close-up pic of handset cable. You can see one end of plug has reverse color codes against the other. Click to enlarge.
+Close-up picture of handset cable. You can see one end of plug has reverse color codes against the other. Click to enlarge.
 [![4P4C cable](http://i.imgur.com/3S9P1mYm.jpg?1)](http://i.imgur.com/3S9P1mY.jpg?1)
 
 [Teensy]: http://www.pjrc.com/teensy/
@@ -43,12 +43,12 @@ Close-up pic of handset cable. You can see one end of plug has reverse color cod
 ![Jack fig](http://www.kbdbabel.org/conn/kbd_connector_macplus.png)
 
 
-### Pull-up Registor
-You may need pull-up registors on signal lines(`CLOCK`, `DATA`) in particular when you have long or coiled cable. **1k-10k Ohm** will be OK for this purpose. In that case the converter may not read signal from keyboard correctly without pull-up resistors.
+### Pull-up Resistor
+You may need pull-up resistors on signal lines(`CLOCK`, `DATA`) in particular when you have long or coiled cable. **1k-10k Ohm** will be OK for this purpose. In that case the converter may not read signal from keyboard correctly without pull-up resistors.
 
 
 
-Building Frimware
+Building Firmware
 -----------------
 To compile firmware you need AVR GCC. You can edit *Makefile* and *config.h* to change compile options and pin configuration.
 

converter/pc98_usb/README

@@ -16,7 +16,7 @@ Connector
      (receptacle)
 
 
-Wiring: You can change this with ediging config.h.
+Wiring: You can change this with editing config.h.
 
     Pin mini DIN        MCU
     ----------------------------------
@@ -34,7 +34,7 @@ Wiring: You can change this with ediging config.h.
 
 Protocol
 --------
-Singnal: Asynchronous, Positive logic, 19200baud, Least bit first
+Signal: Asynchronous, Positive logic, 19200baud, Least bit first
 Frame format: 1-Start bit(Lo), 8-Data bits, Odd-Parity, 1-Stop bit
 
 This converter uses software method for testing purpose. AVR UART engine will work better.

converter/ps2_usb/README.md

@@ -12,7 +12,7 @@ Following three methods are used to implement PS/2 signal handling.
 ### Interrupt driven(ps2_interrupt.c)
     Uses pin interrupt to detect falling edge of clock line.
 ### USART hardware module(ps2_usart.c)
-    Uses AVR USART engine to recevie PS/2 signal.
+    Uses AVR USART engine to receive PS/2 signal.
 
 To select method edit Makefile.
 
@@ -31,7 +31,7 @@ In case of Teensy2.0(ATMega32U4):
 To change pin configuration edit config.h.
 
 
-Build Frimware
+Build Firmware
 --------------
 Just run `make`:
 

converter/sun_usb/README

@@ -34,11 +34,11 @@ Connector
 
 Protocol
 --------
-Singnal: Asynchronous, Negative logic, 1200baud, No Flow control
+Signal: Asynchronous, Negative logic, 1200baud, No Flow control
 Frame format: 1-Start bit, 8-Data bits, No-Parity, 1-Stop bit
 
     AVR USART engine expects positive logic while Sun keyboard signal is negative.
-    To use AVR UART engine you need exteral inverter in front of RX and TX pin.
+    To use AVR UART engine you need external inverter in front of RX and TX pin.
     Otherwise you can software serial routine to communicate the keyboard.
 
 This converter uses software method, you doesn't need any inverter part.

converter/usb_usb/README

@@ -6,7 +6,7 @@ Hardware requirement
 Arduino Leonardo
     http://arduino.cc/en/Main/ArduinoBoardLeonardo 
 
-Circuit@Home USB Host Sheild 2.0
+Circuit@Home USB Host Shield 2.0
     http://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino
 
 

converter/x68k_usb/README

@@ -12,7 +12,7 @@ X68000 keyboard has ALPS linear switches.
 Hardware
 --------
 Target MCU is ATMega32u4 but other USB capable AVR will also work.
-You can use PJRC Teensy as dev board.
+You can use PJRC Teensy as development board.
     http://www.pjrc.com/teensy/
 
 Wiring:
@@ -83,7 +83,7 @@ bit 6-0     following scan code
 
 Data from computer
 ------------------
-- LED contorol ON/OFF(0/1)
+- LED control ON/OFF(0/1)
     bit 7   1(fixed)
     bit 6   全角
     bit 5   ひらがな